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winny
winny
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I have a designed a battery charger in simulink and for the sake of completeness and as a learning experience, I would like to explore EMI filtering and design one for it (as a simulation model).

I have started learning about EMI and filter design and started with this video:https://www.youtube.com/watch?v=FwxtnMfrynM

However it suggests that you design the filter AFTER your circuit is ready and you measure the frequencies you need to filter with LISN. However my problem is that I won't be having an actual circuit, I only have a simulink model. These are my questions:

  1. Is this how actual EMI filters are always designed  ? After the actual circuit is ready?

  2. Is there any other way to find out what frequencies I might need to design the filter for and proceed?

  3. Is there any simulation software that can do EMI simulations so that I can get this information?

I have a designed a battery charger in simulink and for the sake of completeness and as a learning experience, I would like to explore EMI filtering and design one for it (as a simulation model).

I have started learning about EMI and filter design and started with this video:https://www.youtube.com/watch?v=FwxtnMfrynM

However it suggests that you design the filter AFTER your circuit is ready and you measure the frequencies you need to filter with LISN. However my problem is that I won't be having an actual circuit, I only have a simulink model. These are my questions:

  1. Is this how actual EMI filters are always designed  ? After the actual circuit is ready?

  2. Is there any other way to find out what frequencies I might need to design the filter for and proceed?

  3. Is there any simulation software that can do EMI simulations so that I can get this information?

I have a designed a battery charger in simulink and for the sake of completeness and as a learning experience, I would like to explore EMI filtering and design one for it (as a simulation model).

I have started learning about EMI and filter design and started with this video:https://www.youtube.com/watch?v=FwxtnMfrynM

However it suggests that you design the filter AFTER your circuit is ready and you measure the frequencies you need to filter with LISN. However my problem is that I won't be having an actual circuit, I only have a simulink model. These are my questions:

  1. Is this how actual EMI filters are always designed? After the actual circuit is ready?

  2. Is there any other way to find out what frequencies I might need to design the filter for and proceed?

  3. Is there any simulation software that can do EMI simulations so that I can get this information?

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needbrainscratched
needbrainscratched
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How to design EMI filter if you don't have the actual physical circuit ready?

I have a designed a battery charger in simulink and for the sake of completeness and as a learning experience, I would like to explore EMI filtering and design one for it (as a simulation model).

I have started learning about EMI and filter design and started with this video:https://www.youtube.com/watch?v=FwxtnMfrynM

However it suggests that you design the filter AFTER your circuit is ready and you measure the frequencies you need to filter with LISN. However my problem is that I won't be having an actual circuit, I only have a simulink model. These are my questions:

  1. Is this how actual EMI filters are always designed ? After the actual circuit is ready?

  2. Is there any other way to find out what frequencies I might need to design the filter for and proceed?

  3. Is there any simulation software that can do EMI simulations so that I can get this information?